206208 looking glass

AS4837 China Unicom Backbone 🇨🇳 CN

CNCGROUP IP network of ShangHai IDC. Announcing 2,171 prefixes, seen at the RIS collectors.

IPv4 prefixes
1,519
59,289,600 (231,600 × /24)
IPv6 prefixes
652
401 × /32
Upstreams
13
transit providers observed
Peers
25
settlement-free adjacencies
Downstreams
91
transit customers observed
Customer cone
20,384
ASes reachable through it

Registry and operator data

AS number
AS4837
Name
China Unicom Backbone
Organisation
China Unicom
Country
🇨🇳 CN
RIR
APNIC
Allocated
2001-09-17
Network type
NSP
Traffic levels
10-20Tbps
Scope
Regional
Peering policy
Selective
IRR as-set
APNIC::AS4837:AS-CNCGROUP
Website
https://www.chinaunicom.cn/
PeeringDB
net/730
Exchanges
3
Facilities
10

RPKI coverage of this AS

Its own announcements, validated against the current ROA set

2,123 valid (97.8%) 6 invalid (0.3%) 42 no ROA (1.9%)

Upstreams

Networks seen providing transit to this one

Network Country Cone IPv4 prefixes Paths Source
AS3356 Lumen (Level 3) 🇺🇸 US 71,481 2,070 22,881 CAIDA
AS174 Cogent Communications, LLC 🇺🇸 US 65,531 3,873 47,480 CAIDA
AS701 Verizon Business 🇺🇸 US 57,506 958 23,450 CAIDA
AS3320 Deutsche Telekom AG 🇩🇪 DE 51,803 926 6,934 CAIDA
AS5511 Orange S.A. 🇫🇷 FR 51,401 728 76,154 CAIDA
AS45474 Nexusguard Pte. Ltd. 🇸🇬 SG 33,444 89 84 CAIDA
AS7018 AT&T Enterprises, LLC 🇺🇸 US 27,757 626 2,943 CAIDA
AS58453 China Mobile International 🇭🇰 HK 27,524 67 1,004 inferred
AS4766 Korea Telecom 🇰🇷 KR 25,169 2,727 1,517 CAIDA
AS10099 China Unicom Global 🇭🇰 HK 24,682 100 38,013 CAIDA
AS702 Verizon Business - EMEA 🇺🇸 US 20,547 442 374 CAIDA
AS4134 China Telecom Backbone 🇨🇳 CN 20,535 2,250 20,397 CAIDA

Peers

Adjacencies that look settlement-free rather than transit

Network Country Cone IPv4 prefixes Paths Source
AS1299 Arelion (fka. Telia Carrier) 🇸🇪 SE 68,720 110 93,639 CAIDA
AS3257 GTT Communications Inc. 🇺🇸 US 63,137 1,910 16,963 CAIDA
AS6453 TATA Communications (America) Inc 🇺🇸 US 57,385 125 12,563 CAIDA
AS2914 NTT America, Inc. 🇺🇸 US 56,099 1,721 7,885 CAIDA
AS6939 Hurricane Electric LLC 🇺🇸 US 55,195 240 113,970 CAIDA
AS6461 Zayo Bandwidth 🇺🇸 US 53,988 250 187 CAIDA
AS6762 Telecom Italia Sparkle (Seabone) 🇮🇹 IT 53,892 288 15,118 CAIDA
AS3491 PCCW Global (HK) Ltd. 🇭🇰 HK 51,881 525 6 CAIDA
AS1273 Vodafone Group PLC 🇪🇺 EU 49,469 174 537 CAIDA
AS7473 Singapore Telecommunications Ltd 🇸🇬 SG 47,040 46 7,017 CAIDA
AS4637 Telstra International Limited 🇭🇰 HK 41,677 669 256 CAIDA
AS6830 Liberty Global Europe Holding B.V. 🇳🇱 NL 31,688 167 1 CAIDA
AS5405 Inter.link GmbH 🇩🇪 DE 28,685 11 4 CAIDA
AS33891 Core-Backbone GmbH 🇩🇪 DE 27,878 1 1,074 CAIDA
AS2497 Internet Initiative Japan Inc. 🇯🇵 JP 27,355 258 15 CAIDA
AS20485 JSC TransTeleCom 🇷🇺 RU 26,945 85 6,506 CAIDA
AS12389 PJSC Rostelecom 🇷🇺 RU 25,230 3,267 1,378 CAIDA
AS6327 Shaw Communications 🇨🇦 CA 20,284 3,852 17 CAIDA
AS3303 Swisscom (Schweiz) AG 🇨🇭 CH 20,269 348 988 CAIDA
AS56655 Gigahost AS 🇳🇴 NO 19,726 62 16,128 CAIDA
AS4775 Globe Telecoms 🇵🇭 PH 19,663 595 6 CAIDA
AS1257 Tele2 Sverige AB 🇪🇺 EU 419 387 11,047 CAIDA
AS29075 IELO-LIAZO SERVICES SAS 🇫🇷 FR 196 23 196 CAIDA
AS30781 Free Pro SAS 🇫🇷 FR 181 83 8 CAIDA
AS42708 Glesys AB 🇸🇪 SE 96 203 15,767 CAIDA
AS12779 IT.Gate S.p.A. 🇮🇹 IT 75 25 8,594 CAIDA
AS137897 PAN-LIAN TECHNOLOGY CO., LIMITED 🇭🇰 HK 0 32 360 inferred
AS63561 China Electronics Technology Cyber Security Co.,LTD 🇨🇳 CN 0 2 2 CAIDA

Downstreams

Networks this one appears to provide transit to

Network Country Cone IPv4 prefixes Paths Source
AS45899 VNPT Corp 🇻🇳 VN 19,754 3,414 11 CAIDA
AS9873 Lao Telecom Communication, LTC 🇱🇦 LA 19,642 110 20 CAIDA
AS45629 JasTel Network International Gateway 🇹🇭 TH 4,426 8 77 CAIDA
AS4809 China Telecom Next Generation Carrier Network 🇨🇳 CN 407 238 221 CAIDA
AS9808 China Mobile Backbone 🇨🇳 CN 259 14,186 215 CAIDA
AS9929 China Unicom Industrial Internet Backbone 🇨🇳 CN 123 249 14,068 CAIDA
AS4538 China Education and Research Network Center 🇨🇳 CN 84 5,169 1,834 CAIDA
AS4808 China Unicom Beijing Province Network 🇨🇳 CN 81 1,536 99,403 CAIDA
AS9293 NTT Com Asia Limited 🇭🇰 HK 52 132 2 CAIDA
AS17621 China Unicom Shanghai network 🇨🇳 CN 39 400 30,303 CAIDA
AS9678 HostingInside LTD 🇹🇼 TW 16 19 10 CAIDA
AS7497 Computer Network Information Center of Chinese Academy of Sciences (CNIC-CAS) 🇨🇳 CN 15 469 506 inferred
AS9394 China TieTong Telecommunications Corporation 🇨🇳 CN 11 127 106 CAIDA
AS136958 China Unicom Guangdong IDC Network 🇨🇳 CN 8 458 49,204 CAIDA
AS131314 CBC Tech International Limited 🇭🇰 HK 8 34 5 CAIDA
AS17622 China Unicom Guangdong Province Network 🇨🇳 CN 6 468 74,672 CAIDA
AS17623 China Unicom Guangdong Province Shenzhen Network 🇨🇳 CN 5 819 49,770 CAIDA
AS133847 Anpple Tech Enterprise 🇲🇾 MY 5 240 16 CAIDA
AS140726 China Unicom AnHui Province Network 🇨🇳 CN 4 127 12,660 CAIDA
AS138421 China Unicom 🇨🇳 CN 4 258 12,373 CAIDA
AS135061 China Unicom Guangdong IP network 🇨🇳 CN 3 253 17,735 CAIDA
AS140979 China Unicom Shanghai FuTe IDC network 🇨🇳 CN 2 189 8,796 CAIDA
AS24139 WASU Media & Network Co.Ltd 🇨🇳 CN 2 80 1,696 CAIDA
AS10206 China Unicom Zhongwei Cloud 🇨🇳 CN 2 19 1,221 CAIDA
AS134542 China Unicom IP network 🇨🇳 CN 2 19 1,082 CAIDA
AS134544 Cenbong Int'l Holdings Limited 🇭🇰 HK 2 7 129 CAIDA
AS19174 China Unicom (Americas) Operations Ltd 🇺🇸 US 2 8 2 CAIDA
AS134543 China Unicom Guangdong IP network 🇨🇳 CN 0 175 26,095 CAIDA
AS139007 UNICOM InnerMongolia province network 🇨🇳 CN 0 175 8,869 CAIDA
AS37963 Hangzhou Alibaba Advertising Co.,Ltd. 🇨🇳 CN 0 828 8,271 CAIDA
AS45062 NetEase 🇨🇳 CN 0 131 5,138 CAIDA
AS17816 China Unicom Guangdong Province Network 🇨🇳 CN 0 117 4,837 CAIDA
AS136959 China Unicom Guangdong IP network 🇨🇳 CN 0 100 3,811 CAIDA
AS140716 UNICOM JiangSu WuXi IDC network 🇨🇳 CN 0 73 3,129 CAIDA
AS17968 Daqing Zhongji Petroleum Communication Construction C 🇨🇳 CN 0 45 2,462 CAIDA
AS140717 UNICOM JiangSu Suzhou IDC network 🇨🇳 CN 0 35 1,572 CAIDA
AS140707 UNICOM Ningxia province network 🇨🇳 CN 0 25 1,360 CAIDA
AS9389 China Greatwall Internet (Beijing Shenzhou Greatwall) 🇨🇳 CN 0 35 1,125 CAIDA
AS133119 China Unicom IP network 🇨🇳 CN 0 67 1,038 CAIDA
AS152120 China Unicom TianJing GaoCun IDC network 🇨🇳 CN 0 12 857 CAIDA
AS137735 China Construction Bank 🇨🇳 CN 0 41 784 CAIDA
AS131516 Jinhua Weian InfoTech Co., Ltd 🇨🇳 CN 0 26 774 CAIDA
AS140886 UNICOM Guangxi province network 🇨🇳 CN 0 14 713 CAIDA
AS133118 China Unicom IP network 🇨🇳 CN 0 18 697 CAIDA
AS139099 Zhejiang Geely Holding Group 🇨🇳 CN 0 15 602 CAIDA
AS63581 GUANGXI RADIO & TELEVISION INFORMATION NETWORK CO.,LTD. 🇨🇳 CN 0 27 537 CAIDA
AS45090 Tencent Cloud 🇨🇳 CN 0 2,254 433 CAIDA
AS24406 China Internet Network Infomation Center 🇨🇳 CN 0 28 375 CAIDA
AS151295 Jiangsu Yinsuyun Network Technology Co. , Ltd. 🇨🇳 CN 0 8 375 CAIDA
AS131511 Beijing Chenxun Technology Co., Ltd. 🇨🇳 CN 0 16 352 CAIDA
AS23848 Shenzhen Ping An Communication Technology Co.,Ltd 🇨🇳 CN 0 58 258 CAIDA
AS23771 SXBCTV ,Internet Service Provider, 🇨🇳 CN 0 16 215 CAIDA
AS45113 Shanxi Datong Coal Group Communication Co., Ltd 🇨🇳 CN 0 5 215 CAIDA
AS9306 China International Economy and Trade Network 🇨🇳 CN 0 5 198 CAIDA
AS63701 Jishi Media Co ., Ltd. 🇨🇳 CN 0 11 164 CAIDA
AS21856 Nokia of America Corporation 🇺🇸 US 0 5 163 CAIDA
AS4859 The State Information Center of P.R.China 🇨🇳 CN 0 3 160 CAIDA
AS137718 Beijing Volcano Engine Technology Co., Ltd. 🇨🇳 CN 0 333 153 inferred
AS139154 Big Data Center Of Shandong Province 🇨🇳 CN 0 3 149 CAIDA
AS56012 LGNET China 🇨🇳 CN 0 8 144 CAIDA
AS63718 Hangzhou YouYun Technology Co., Ltd. 🇨🇳 CN 0 7 113 CAIDA
AS38378 Bosch (China) Investment Ltd. 🇨🇳 CN 0 3 102 CAIDA
AS137788 Shanxi Beacon Cloudscape 🇨🇳 CN 0 2 86 CAIDA
AS38365 Beijing Baidu Netcom Science and Technology Co., Ltd. 🇨🇳 CN 0 142 79 CAIDA
AS137539 China Unicom 🇨🇳 CN 0 1 74 CAIDA
AS137787 Beijing Jingdong Shangke Information Technology Co. Ltd. 🇨🇳 CN 0 5 64 CAIDA
AS131519 Hisense 🇨🇳 CN 0 1 43 CAIDA
AS45074 Data Management Centre National Bureau of Statistics of China 🇨🇳 CN 0 1 43 CAIDA
AS23851 CHONGQING CNC BROADBAND NETWORKS CO.,LTD 🇨🇳 CN 0 1 43 CAIDA
AS59074 TAIKANG INSURANCE GROUP CO.,LTD. 🇨🇳 CN 0 3 42 CAIDA
AS24137 KuanggongLu, Pingdingshan, Henan, China 🇨🇳 CN 0 4 24 CAIDA
AS151296 Changzhou Jieyun Network Technology Co. Ltd. 🇨🇳 CN 0 4 17 CAIDA
AS137731 Guangdong Huayun Century Technology Co., Ltd. 🇨🇳 CN 0 4 17 CAIDA
AS45560 TOPNET. IP Transit AS 🇰🇷 KR 0 14 14 CAIDA
AS139021 West263 International Limited 🇭🇰 HK 0 22 14 CAIDA
AS151243 China Internet Network Information Center 🇨🇳 CN 0 2 9 inferred
AS139136 ZHEJIANG PROVINCE NEW-TYPE INTERNET EXCHANGE POINT CO.,LTD. 🇨🇳 CN 0 1 9 CAIDA
AS58852 Guizhou provincial radio and television information Network Inc 🇨🇳 CN 0 3 8 CAIDA
AS59009 QingDao WangXin Telcom Corp. Limited 🇨🇳 CN 0 12 8 CAIDA
AS55990 Huawei Cloud Service data center 🇨🇳 CN 0 394 6 CAIDA
AS153347 Lao Communication Technology Sole Co., Ltd 🇱🇦 LA 0 4 6 CAIDA
AS63704 Guizhou provincial radio and television information Network Inc 🇨🇳 CN 0 1 5 CAIDA
AS45106 JIANGSU BROADCASTING DATA NETWORK CORPORATION LIMITED 🇨🇳 CN 0 4 4 CAIDA
AS137795 Hangzhou Sulian Information Technology Co.,ltd 🇨🇳 CN 0 1 4 CAIDA
AS146816 Guizhou Moutai Winery (Group) Co., Ltd. 🇨🇳 CN 0 0 2 inferred
AS146822 Shenzhenshi Zhongyun Shujujishu Youxiangongsi 🇨🇳 CN 0 1 2 CAIDA
AS37969 Zhejiang WuLian Network Technology Co.,Ltd. 🇨🇳 CN 0 6 2 CAIDA
AS24150 1 TianXianQiao BinHe Road,Chengdu,SiChuan 🇨🇳 CN 0 1 1 inferred

Relationships marked inferred come from where the two networks sit on the AS paths the collectors see, which is a guess and is wrong for some of them. The rest are stated by CAIDA's published inference over a much wider set of collectors.